feat(runs): add log search with backend LIKE filter and pagination

- add Search pill component with lucide icon and focus highlight
- wire debounced search input to GET /run/:id?q= backend filter
- backend filters run logs with LIKE %q% via TypeORM
- add sectionHeadingRow layout for heading + search alignment
- add i18n keys: runs.step_title, logs_search_placeholder

client/src/api/client.ts

@@ -209,8 +209,9 @@ export const runs = {
   list(scenarioId: string, page = 1, limit = 20): Promise<PaginatedResponse<ScenarioRun & { stepRuns: ScenarioRunStep[] }>> {
     return request(`/scenarios/${scenarioId}/runs?page=${page}&limit=${limit}`);
   },
-  get(scenarioId: string, runId: string): Promise<ScenarioRunDetail> {
-    return request(`/scenarios/${scenarioId}/run/${runId}`);
+  get(scenarioId: string, runId: string, q?: string): Promise<ScenarioRunDetail> {
+    const qs = q?.trim() ? `?q=${encodeURIComponent(q.trim())}` : '';
+    return request(`/scenarios/${scenarioId}/run/${runId}${qs}`);
   },
 };
 

client/src/i18n/locales/en.json

@@ -198,7 +198,9 @@
     "field_created": "Started",
     "field_updated": "Updated",
     "steps_heading": "Step runs",
+    "step_title": "Title",
     "logs_heading": "Logs",
+    "logs_search_placeholder": "Filter logs…",
     "step_order": "#",
     "step_type": "Type",
     "step_session": "Session",

client/src/pages/Page.module.css

@@ -6,7 +6,7 @@
 }
 
 .sectionHeading {
-  margin: 0;
+  margin: 0 0 var(--space-3);
   line-height: 1;
   font-size: var(--font-size-md);
   font-weight: 600;
@@ -17,6 +17,13 @@
   margin-top: var(--space-6);
 }
 
+.sectionHeadingRow {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-bottom: var(--space-3);
+}
+
 .breadcrumbs {
   margin-bottom: var(--space-4);
 }

client/src/pages/run/RunDetailPage.tsx

@@ -19,6 +19,8 @@ import {
   Card,
   DescriptionList,
   Notification,
+  Pagination,
+  Search,
   Table,
   Timestamp,
   UuidBadge,
@@ -67,6 +69,11 @@ export function RunDetailPage() {
   const [error, setError] = useState<string | null>(null);
   const [polling, setPolling] = useState(false);
   const [pulseKey, setPulseKey] = useState(0);
+  const [logPage, setLogPage] = useState(1);
+  const [logSearch, setLogSearch] = useState('');
+  const [debouncedSearch, setDebouncedSearch] = useState('');
+  const logSearchRef = useRef('');
+  const LOG_PAGE_SIZE = 25;
   const pollRef = useRef<ReturnType<typeof setInterval> | null>(null);
 
   const FINAL: ScenarioRunStatus[] = ['pass', 'fail'];
@@ -79,6 +86,20 @@ export function RunDetailPage() {
     }
   };
 
+  useEffect(() => {
+    const t = setTimeout(() => {
+      setDebouncedSearch(logSearch);
+      logSearchRef.current = logSearch;
+      setLogPage(1);
+    }, 300);
+    return () => clearTimeout(t);
+  }, [logSearch]);
+
+  useEffect(() => {
+    if (!id || !runId || polling) return;
+    runs.get(id, runId, debouncedSearch).then(setRun).catch(() => undefined);
+  }, [debouncedSearch]);
+
   useEffect(() => {
     if (!id || !runId) return;
     let cancelled = false;
@@ -92,7 +113,7 @@ export function RunDetailPage() {
           setPolling(true);
           pollRef.current = setInterval(async () => {
             try {
-              const updated = await runs.get(id, runId);
+              const updated = await runs.get(id, runId, logSearchRef.current);
               if (cancelled) return;
               setRun(updated);
               setPulseKey((k) => k + 1);
@@ -215,14 +236,29 @@ export function RunDetailPage() {
 
           {run.logs.length > 0 && (
             <div className={styles.stepsSection}>
-              <h2 className={styles.sectionHeading}>{t('runs.logs_heading')}</h2>
+              <div className={styles.sectionHeadingRow}>
+                <h2 className={styles.sectionHeading}>{t('runs.logs_heading')}</h2>
+                <Search
+                  value={logSearch}
+                  onChange={setLogSearch}
+                  placeholder={t('runs.logs_search_placeholder')}
+                />
+              </div>
               <Table
                 columns={logColumns}
-                data={run.logs}
+                data={run.logs.slice((logPage - 1) * LOG_PAGE_SIZE, logPage * LOG_PAGE_SIZE)}
                 rowKey={(l) => l.id}
                 loading={false}
                 emptyMessage=""
               />
+              {run.logs.length > LOG_PAGE_SIZE && (
+                <Pagination
+                  page={logPage}
+                  pageSize={LOG_PAGE_SIZE}
+                  total={run.logs.length}
+                  onPageChange={setLogPage}
+                />
+              )}
             </div>
           )}
         </>

client/src/ui/Search/Search.module.css

@@ -0,0 +1,36 @@
+.root {
+  display: inline-flex;
+  align-items: center;
+  gap: var(--space-2);
+  padding: 5px var(--space-3);
+  border: var(--border-width) solid var(--color-border);
+  border-radius: var(--radius-full);
+  background: var(--color-bg-subtle);
+  transition: border-color var(--transition), background var(--transition);
+}
+
+.root:focus-within {
+  border-color: var(--color-primary);
+  background: var(--color-bg);
+}
+
+.icon {
+  color: var(--color-text-muted);
+  flex-shrink: 0;
+  display: block;
+}
+
+.input {
+  border: none;
+  background: transparent;
+  color: var(--color-text);
+  font-family: var(--font-family);
+  font-size: var(--font-size-xs);
+  outline: none;
+  width: 180px;
+  min-width: 0;
+}
+
+.input::placeholder {
+  color: var(--color-text-muted);
+}

client/src/ui/Search/Search.tsx

@@ -0,0 +1,23 @@
+import { Search as SearchIcon } from 'lucide-react';
+import styles from './Search.module.css';
+
+export interface SearchProps {
+  value: string;
+  onChange: (value: string) => void;
+  placeholder?: string;
+}
+
+export function Search({ value, onChange, placeholder = 'Search…' }: SearchProps) {
+  return (
+    <div className={styles.root}>
+      <SearchIcon size={13} className={styles.icon} />
+      <input
+        className={styles.input}
+        type="text"
+        value={value}
+        onChange={(e) => onChange(e.target.value)}
+        placeholder={placeholder}
+      />
+    </div>
+  );
+}

client/src/ui/index.ts

@@ -33,6 +33,9 @@ export type { TimestampProps } from './Timestamp/Timestamp';
 export { Pagination } from './Pagination/Pagination';
 export type { PaginationProps } from './Pagination/Pagination';
 
+export { Search } from './Search/Search';
+export type { SearchProps } from './Search/Search';
+
 export { ContextMenu } from './ContextMenu/ContextMenu';
 export type { ContextMenuProps, ContextMenuItem } from './ContextMenu/ContextMenu';